Plastic, burning, hydrogen cyanide from

Hydrogen cyanide is a gas easily generated by mixing acid with cyanide salts and is a common combustion by-product of burning plastics, wool, and many other natural and synthetic products. Hydrogen cyanide poisoning is an important cause of death from stmctural fires, and deliberate cyanide exposure remains an important instalment of homicide and suicide. 

The composition of combustion gases from nitrogen-containing plastics (such as polyacrylonitrile, polyamides, polyurethanes, urea and melamine resins) is by no means clear. In most cases, carbon monoxide is accompanied by hydrogen cyanide, ammonia, and nitrous gases in the gas mixture. Their concentrations are greatly influenced by the burning conditions. 

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